33results about How to "Enhanced turbulence effect" patented technology

This utility model relates to the field of chemical cooling technology, and provides a production device for cooling chemical mixtures, including a reaction vessel. A cooling chamber is provided on the outside of the reaction vessel, and a cooling pipe is provided inside the cooling chamber. The cooling pipe is wound around the outer wall of the reaction vessel. A stirring mechanism is provided inside the reaction vessel. Heat dissipation mechanisms are provided on both sides of the cooling chamber on the outside of the reaction vessel. By providing a stirring mechanism and a heat dissipation mechanism, this utility model can provide forced air cooling for the cooling pipe and cooling medium, accelerating the diffusion of heat to the environment. While improving the cooling effect, only one drive motor is needed to drive the stirring blades and the cooling fan at the same time, reducing the number of power devices, simplifying the equipment structure, and reducing energy consumption and maintenance costs.

The utility model discloses an emulsifier tail gas adsorption processing device, including the box, the feed inlet of box is provided with the filter bin, and the top of filter bin is provided with the air inlet pipe, be provided with the filter screen in the box, filter screen side is provided with adsorption cover, adsorption cover side is provided with the exhaust fan, the other end of exhaust fan is connected with the gas collecting pipe, the other end of gas collecting pipe is inserted in the liquid in the inner cylinder body, and is provided with the check valve on the gas collecting pipe, be provided with the stirring mechanism in the inner cylinder body, the inner cylinder body top is inserted with the exhaust pipe, and the exhaust pipe is connected with the purification ball, the outer portion of inner cylinder body is provided with tail gas cooling mechanism. The utility model discloses scientific and reasonable structure design, through motor drive pivot and stirring paddle rotation to agitate neutral liquid, make neutral liquid and tail gas contact area increase, and the neutral efficiency improves greatly, and the gas through processing is filtered after discharging to the collection device in the purification ball, improves tail gas absorption efficiency.

The application discloses a micro-fluidic chip and a method for recovering nucleic acids with different fragment sizes. The method can realize recovery of nucleic acids with different fragment sizes by repeatedly washing and recovering magnetic beads through the micro-fluidic chip. The method can improve the overall nucleic acid recovery effect by adjusting the adding concentration of the magnetic beads and PEG salt and the washing times, and can distinguish and control the nucleic acid length, and all the nucleic acids with different fragment lengths can be obtained by continuously adjusting the concentration. Moreover, the method can realize small volume, high throughput and automation.

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

This utility model discloses a nanoscale homogenizing device for cosmetic active ingredients, belonging to the field of cosmetic processing technology. It addresses the problem in existing technologies where, when cosmetic active ingredients require homogenization, agglomeration or stratification occurs, leading to a decrease in the initial mixing effect of the initial materials. This necessitates a longer homogenization time, thus reducing the working efficiency of the nanoscale homogenizing device. The device includes a base, a second motor, a cylinder, a feed inlet, a feed hopper, a fixed plate, a first motor, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a stirring rod, a flange, a connecting pipe, a crossbar, and an impact block. The impact block is conical in shape, the feed hopper is cylindrical, and flanges are installed at both ends of the connecting pipe.

This application relates to the technical field of dust removal, and in particular to a multi-stage dust removal device and method for coal mine roadways with impact resistance. The device includes an upward-opening water tank with an outlet on the side. A rotating shaft is rotatably mounted on the bottom of the water tank via a bearing. A cavity for air passage is formed inside the rotating shaft. A pushing mechanism is installed on the part of the rotating shaft located inside the water tank, and a pre-treatment mechanism that cooperates with the cavity is installed on the top of the rotating shaft. The pushing disc and the fan-shaped plate cooperate to push impurities floating on the water surface upward, which can effectively remove floating impurities on the water surface and prevent them from forming a barrier film on the water surface. This creates an unobstructed channel for gas diffusion. That is, when the water surface is kept clean and unobstructed, the gas can escape from the water surface more smoothly, the separation efficiency of impurities and gas is significantly improved, and thus the dust removal effect of the gas is greatly improved.

The utility model relates to the field of electronic equipment, in particular to a variable channel type heat dissipation cold plate which comprises an end cover and a heat dissipation cavity which jointly form a three-section type heat dissipation channel. The heat dissipation channel sequentially comprises a first heat dissipation channel section with the large width, a second heat dissipation channel section with the large width and a third heat dissipation channel section with the small width in the flow direction of cooling airflow. The first heat dissipation channel section is provided with a plurality of large-diameter hollow heat dissipation columns which are filled with phase change materials, the third heat dissipation channel section is provided with small-diameter solid heat dissipation columns which are densely arranged, and airflow transition is achieved between the first heat dissipation channel section and the third heat dissipation channel section through a flow guide plate of the second heat dissipation channel section; through the design of the differentiated heat dissipation columns, large-flow rapid heat dissipation is achieved in the first channel section, and the turbulence effect is enhanced in the third channel section; the heat dissipation efficiency and the temperature uniformity are remarkably improved by combining the transient heat absorption characteristics of the heat conduction boss in direct contact with a heat source and the phase change material; the structure is compact, and is especially suitable for heat dissipation requirements of high-power-density electronic equipment.

The present invention discloses a flow channel assembly for a membrane element, the flow channel assembly comprises: a flow channel element, the flow channel element is concaved inwards to form a plurality of concave structures and is convex outwards to form a plurality of convex structures, and the plurality of concave structures and the plurality of convex structures are distributed in a staggered manner; the flow channel element comprises a water inlet section, a transition section and a water outlet section in the first direction, and the density of the multiple concave structures and the density of the multiple convex structures are gradually increased in sequence along the water inlet section, the transition section and the water outlet section. Through the gradient design that the density of the concave-convex structures of the water inlet section, the transition section and the water outlet section is gradually increased, water flow resistance at the water inlet end is reduced, pressure loss is reduced, and it is guaranteed that water flow enters rapidly and stably; the transition section realizes stable transition of water flow from a low-resistance state to a high-turbulence state and prevents the water flow from impacting the surface of the membrane; the high-density concave-convex structure at the water outlet end generates strong turbulence to effectively scour a concentration polarization layer on the surface of the membrane, low resistance and high turbulence are both considered, the scale deposition risk is reduced, and the service life of the membrane element is prolonged.

The utility model discloses a dust remover cooling device for secondary aluminum alloy production, which belongs to the technical field of flue gas cooling and comprises an air cooling box, a plurality of shunt pipes are longitudinally arrayed in the air cooling box, conical cavities are detachably connected to the top surface and the bottom surface of the air cooling box, the conical cavity at the top is communicated with a flue gas inlet pipe, and the conical cavity at the bottom is communicated with a flue gas outlet pipe. The top end of the shunt pipe extends out of the top surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas inlet pipe; the bottom end of the shunt pipe extends out of the bottom surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas outlet pipe; an air inlet and an air outlet are respectively formed in two opposite side surfaces of the air cooling box; a fan is correspondingly and fixedly connected outside the air inlet; a spiral flow deflector is arranged in the flow dividing pipe and detachably connected with the flow dividing pipe. Through the innovative structural design, the high-temperature flue gas cooling device has remarkable advantages in the aspects of high-temperature flue gas cooling efficiency, equipment maintenance convenience and the like.

The utility model discloses a kind of evaporators for super-low temperature cryotherapy cabin in the technical field of cryotherapy cabin, including the shell of being fixed on the back of cryotherapy cabin, shell is sequentially provided with precooling chamber, evaporator body and mixing chamber from below to above along vertical direction in;Precooling chamber is equipped with precooling component for using cryotherapy cabin exhaust end waste gas recovery cold quantity to carry out preliminary cooling to fresh air;Evaporator body is used to cool fresh air after precooling to target low temperature;The top of shell is equipped with dosing component for atomizing and spraying medicine to mixing chamber, mixing chamber is used to mix atomized medicine with target low temperature fresh air, and mixed gas is delivered to cryotherapy cabin inside.The device is set through the double cooling structure of precooling component and evaporator body, not only effectively improve the comprehensive utilization of cold quantity, reduce the load of evaporator body, significantly reduce liquid nitrogen consumption.

The utility model relates to the technical field of heat exchange sleeves, in particular to a middle-deep geothermal well heat exchange sleeve which comprises a main pipeline, an exhaust mechanism is arranged on the top of the main pipeline, the main pipeline and the exhaust mechanism are both located in a high-temperature stratum, and the exhaust mechanism comprises an installation pipe connected to the top end of the main pipeline. A plurality of sets of protruding columns are fixedly connected to the surface of the mounting pipe, sealing rings are fixedly connected to the outer side walls of the protruding columns, and the bottom ends of the protruding columns are hemispherical and located below the mounting pipe; a plurality of groups of through holes are formed in the bottom ends of the convex columns; waterproof breathable films are fixedly connected to the interiors of the through holes; and the waterproof breathable films are made of a high-temperature-resistant material. Through the cooperation of the main pipeline and the exhaust mechanism and the combination design of the waterproof breathable film and the protruding columns, water vapor is allowed to be discharged freely, liquid water is prevented from entering, air pressure in the pipeline is effectively reduced, downward water pumping resistance of the outer sleeve water pump is reduced, and heat exchange efficiency is improved.

The utility model discloses an efficient heat exchange unit with a filtering mechanism, which comprises a horizontal thermal insulation cylinder, the interior of the thermal insulation cylinder is a hollow heat exchange cavity, and a high-temperature medium inlet and a low-temperature medium outlet which are respectively communicated with the heat exchange cavity are oppositely arranged on the left side and the right side of the thermal insulation cylinder; a high-temperature medium outlet and a low-temperature medium inlet are oppositely formed in the left end and the right end of the top of the heat preservation barrel, a plurality of horizontally-arranged S-shaped heat exchange pipes are evenly arranged in the heat exchange cavity, and the two ends of each S-shaped heat exchange pipe communicate with the high-temperature medium outlet and the low-temperature medium inlet through connected special-shaped transition pipes correspondingly. The high-temperature medium inlet is hermetically connected with a first filtering mechanism which combines multiple filtering modes and is used for filtering a high-temperature medium, and the low-temperature medium inlet is hermetically connected with a second filtering mechanism which combines multiple filtering modes and is used for filtering a low-temperature medium. The heat exchanger not only can effectively remove impurities in a medium, but also can improve the heat exchange efficiency.

The utility model belongs to heat exchange technical field, specifically discloses a kind of spoiler, heat exchange device and gas water heating equipment. Spoiler includes long strip's spoiler plate, and spoiler plate is spaced apart with multiple spoiler through holes along length direction, each spoiler through hole has relatively and spaced apart first hole wall and second hole wall, each first hole wall is connected with first spoiler piece, each second hole wall is connected with second spoiler piece, and the projection of first spoiler piece and second spoiler piece corresponding to same spoiler through hole is set on spoiler plate with dislocation;The free end of adjacent two first spoiler pieces is located at the opposite sides of spoiler plate respectively, and the free end of adjacent two second spoiler pieces is located at the opposite sides of spoiler plate respectively. Heat exchange device includes heat exchange pipe and spoiler, and spoiler is inserted in heat exchange pipe. The utility model can improve the spoiler effect of spoiler, and then improve heat exchange uniformity.

The utility model relates to the technical field of ultrasonic cleaning machines, in particular to an ultrasonic cleaning machine with multidirectional rotating blades, which comprises an ultrasonic cleaning machine main body and a cleaning cylinder arranged on the ultrasonic cleaning machine main body, and a support frame is fixedly mounted on the inner wall of a top cylinder body of the cleaning cylinder. A left stirring motor and a right stirring motor which are mutually symmetrical are fixedly installed on the supporting frame, a long shaft stretching into the bottom of the cleaning cylinder is fixedly installed at the tail end of an output shaft of each stirring motor, stirring blades are fixedly installed on the left side and the right side of each long shaft, and a left shaft sleeve and a right shaft sleeve which are arranged on a shaft body at the bottom of each long shaft in a sleeving mode are fixedly installed on the bottom wall of the cleaning cylinder. A discharging pipe is fixedly installed on the side edge cylinder body of the bottom of the cleaning cylinder, and a discharging valve is fixedly installed on the discharging pipe. The cleaning device is provided with a multidirectional rotating paddle structure, and the cleaning effect can be improved.

The utility model provides a printing roller cooling device, which belongs to the field of printing and comprises a first electromagnetic valve, a cold water pipe, a first cooling pipeline, a first nozzle and a second cooling pipeline, the cold water pipe is provided with the first electromagnetic valve to realize interval spraying, and two ends of the first cooling pipeline are respectively connected with the cold water pipe and the second cooling pipeline. A first nozzle is arranged at the position, connected with the cold water pipe, of the first cooling pipeline to conduct pulse cooling, the second cooling pipeline is an axial straight-through flow channel, and cooling water in the second cooling pipeline can flow in an unpowered mode. By optimizing the design of a flow channel in the printing roller, higher heat exchange efficiency is achieved, and therefore the requirement for a cooling system is lowered.

The utility model discloses a kind of fin of ultrathin high heat exchange effect, including fin main body, the fin main body is horizontal sheet body, its thickness is 0.06mm to 0.1mm;The long shape through slot is the through slot of left and right extension, the left and right ends of its two ends shaped elastic positioning sheet include lower bending part, the lower end of the lower bending part of two corresponding left and right is far away, upper end is close, the top of two lower bending parts is shaped upper bending part, the lower end of two upper bending parts is close, upper part is far away;It is small, small, thin, light in volume, in the case where cost is reduced, can improve its heat exchange performance.

This utility model discloses an aeration-type fertilizer-water mixing device, comprising: a mixing unit, which includes a tank, a drive mechanism, a stirring rod, and a stirring paddle; the drive mechanism is installed on the top of the tank, the top of the stirring rod is connected to the drive mechanism, and the stirring paddle is installed on the stirring rod; and an aeration unit, which includes an air pump, a rotary joint, an air pipe, and an annular aeration disc; the rotary joint is installed on the top of the stirring rod, the air pump is connected to the rotary joint through the air pipe, the stirring rod has an airflow channel inside, and a first bubble hole connected to the airflow channel is opened on the stirring rod; the annular aeration disc is installed circumferentially inside the middle section of the tank, and the annular aeration disc is connected to the air pipe through a branch pipe; and a second bubble hole is evenly distributed on the annular aeration disc; through the synergistic effect of the first bubble hole on the stirring rod and the second bubble hole on the annular aeration disc, the bubbles are evenly distributed in the axial and radial directions of the tank, eliminating mixing dead zones and significantly improving the uniformity of fertilizer-water mixing.

This invention relates to the field of dental mixing machine technology, and more particularly to a universal dental material mixing machine. It includes a chassis with a door connected to the front side, and a mixing chamber fixedly installed within the chassis cavity. The mixing chamber contains two sets of lifting cylinders and two sets of mixing rods. Two sets of ultrasonic mixing mechanisms are installed at the top of the mixing chamber, and two sets of lifting mechanisms are installed at the bottom. A control module is installed inside the chassis. This universal dental material mixing machine places a container holding dental materials inside the lifting cylinders within the mixing chamber. Then, the corresponding mixing head is fully immersed in the material. Subsequently, the ultrasonic mixing mechanism is activated by the control module, transmitting vibration energy through the mixing head to the material to achieve molecular-level uniform mixing, which is more efficient than traditional mechanical stirring. This device achieves bubble-free, low-noise, and highly uniform mixing by using ultrasonic vibration mixing.

The application provides a method for removing hydrogen chloride from a chloride intermediate, and belongs to the technical field of chemical production processes. The chloride intermediate is introduced into a mixer from a material inlet of the mixer, and enters a refining kettle through a two-way channel of the mixer; after the introduction of the chloride intermediate is stopped, refining gas is continuously introduced into the mixer from the material inlet of the mixer for purging, and the chloride is obtained. The method provided by the application can make the material in the refining kettle produce internal circulation by limiting the structure of the mixer, so as to play a role of sufficient stirring and accelerate the removal speed of hydrogen chloride in the chloride intermediate. The results of the examples show that, after the method provided by the application is used for purging for 30 min, the actually measured hydrogen chloride content can reach below 0.05 mg / L, the removal time is greatly reduced, and the annual energy consumption reduction rate can reach 87.5%.

This utility model relates to the field of wastewater treatment equipment, and more particularly to an anti-clogging multi-media filter suitable for high-viscosity, high-turbidity wastewater. It includes a filter tank, an upper inlet pipe, a lower connecting pipe, a support column, a shaking screening mechanism, and a tapping cleaning mechanism. The upper inlet pipe is fixedly connected to the upper surface of the filter tank. This utility model incorporates a shaking screening mechanism and a tapping cleaning mechanism on top of a conventional filtration and backwashing valve system. The shaking screening mechanism utilizes mechanical vibration to effectively break up stubborn contaminant layers. The tapping cleaning mechanism uses water-driven tapping plates to pre-disperse contaminants during filtration and enhance turbulence during backwashing. This forms a multi-level cleaning method combining hydraulic flushing with mechanical vibration and tapping. Compared to traditional filters, its backwashing is more thorough, effectively solving the clogging problem of high-viscosity, high-turbidity wastewater filtration, and improving the operational stability of the equipment and the service life of the filter media.

The utility model relates to the technical field of vacuum heat treatment equipment, and discloses a double-temperature-zone dynamic heat insulation device in a vacuum chamber, which comprises a vacuum chamber shell, the top of the vacuum chamber shell is fixedly connected with a fixed plate, the inner side of the fixed plate is fixedly connected with an upper chamber shell, the outer side of the vacuum chamber shell and the outer side of the upper chamber shell are provided with a circulating assembly, and the circulating assembly is connected with the vacuum chamber shell. A plurality of connecting plates are fixedly connected to the side face of the fixing plate, driving assemblies are arranged on the side faces of the connecting plates, two circular plate cooling assemblies are arranged in the vacuum cavity shell, and a plurality of rotating shafts are rotationally connected to the inner side of the fixing plate. The rotating power source drives the rotating shaft to rotate, so that dynamic stirring of the rectangular water cooling plate in the vacuum chamber is achieved, static heat distribution is broken, cooling liquid is driven to circulate through the water outlet flow channel and the water inlet flow channel in the rotating shaft, efficient heat exchange in the rotating state is achieved, and the turbulence effect is enhanced through centrifugal force.

The utility model provides a brazing type plate heat exchanger, which relates to the technical field of heat exchangers, and comprises a heat exchanger main body and plate sheets, a plurality of plate sheets are arranged in the heat exchanger main body, corner holes are arranged at four corners of each plate sheet, a flow guide plate is arranged near the edge of each corner hole, and the flow guide plates are arranged in the heat exchanger main body. Hexagonal micro pits are formed in a brazing area of the sheet bar. Corrugation angles on the plate sheets are gradually reduced from 60 degrees of an inlet to the center, and are matched with spiral corrugations with opposite rotation directions of adjacent plate sheets to form three-dimensional vortexes, enhance turbulence effects, reduce low-speed flow areas and improve heat exchange efficiency, and meanwhile, the semi-ellipsoid flow guide bosses form transverse secondary flows in the central areas of the plate sheets, destroy heat boundary layers and strengthen heat transfer, so that the heat exchange efficiency is improved. The heat exchange coefficient of a low-flow-rate area is improved.

This invention relates to the field of marine fuel supply technology, specifically to an adjustment structure for a marine fuel supply unit. The structure includes a heat exchange box, a delivery pipe, and a suction pipe, both mounted on the heat exchange box. It also includes a mounting base, a motor, a sleeve, a stop block, a drive assembly, a stirring assembly, and a preheating assembly. The mounting base is located on the top of the heat exchange box, and the motor is mounted on the mounting base. Through the motor, drive assembly, stirring assembly, and preheating assembly, this invention continuously adjusts the flow state of the heavy oil in the heat exchange box according to changes in the viscosity of the heavy oil during preheating. After the viscosity of the heavy oil decreases, the preheating assembly rotates inside the heat exchange box, increasing the turbulence effect within the heavy oil and expanding the preheating range. This effectively improves the heat exchange efficiency between cold and hot oil within a limited preheating time, ensuring normal navigation during ship acceleration while maintaining economic efficiency.

This invention relates to the field of ammonia refining equipment technology, specifically a liquid ammonia vaporizer applied in an ammonia refining unit. It includes a preheating pipe, one end of which is connected to a liquid ammonia inlet, and the other end to a riser pipe. The riser pipe is connected to a distributor, and several injection holes are respectively opened on both sides of the bottom of the distributor. A crushing plate is fixedly installed on both sides of the riser pipe, and several crushing holes are opened on the surface of the crushing plate. In this structure, liquid ammonia first enters the preheating pipe through the liquid ammonia inlet, causing partial vaporization. The partially vaporized liquid ammonia enters the riser pipe, forming a gas-liquid two-phase flow, increasing the liquid ammonia flow rate for further vaporization. Driven by the gas phase, the liquid ammonia is ejected at high speed from the distributor onto the crushing plate. Under the action of the crushing holes, the liquid ammonia is broken into small droplets, which are further vaporized by the rising high-temperature crude ammonia gas, thus achieving a good liquid ammonia vaporization effect.

This utility model discloses a shell-and-tube water-to-water heat exchanger belonging to the technical field of heat exchangers. It includes a cylindrical body and a cylindrical section, with a tube sheet between the body and the section, and a sealed connection via flange bolts. A partition inside the cylindrical section divides it into a first medium inlet chamber and a first medium outlet chamber. The body has a second medium inlet pipe and a second medium outlet pipe. An anti-impact plate is welded to the inner wall of the body below the second medium inlet pipe. Multiple U-shaped heat exchange tubes are installed inside the body, with both ends of each U-shaped tube penetrating through corresponding holes in the tube sheet and sealed. At least five baffles are arranged equidistantly along the axial direction of the body, with adjacent baffles staggered circumferentially. The baffles have corresponding holes for the U-shaped heat exchange tubes. The surface of the U-shaped heat exchange tubes has spiral microribs, increasing the contact area between the fluid and the tube surface and improving the heat transfer coefficient.

The utility model provides a kind of lubricating oil stirring device, belong to lubricating oil blending equipment technical field. Including blending tank, blending tank top is equipped with protective cover, and protective cover top is connected with air inlet pipe through and through, and air inlet pipe inner wall is connected with communicating pipe by sealing bearing, and communicating pipe is through the top wall of blending tank and is formed sealed rotary cooperation with it;The one end in blending tank of communicating pipe is equipped with the multiple stirring rods of radial extension, and the one end in blending tank of communicating pipe is communicated with the multiple first air outlet pipes of first check valve installation;Motor is fixed in protective cover, and the output shaft of motor is connected with first bevel gear, and second bevel gear is engaged with first bevel gear and is set on communicating pipe;Blending tank top is equipped with the exhaust pipe in protective cover one side, and exhaust valve is equipped on exhaust pipe. The utility model can combine the mechanical stirring of transmission and pulse blending stirring, can greatly improve the effect of blending, improve the quality of blending.

The utility model discloses a conveyor for bagged chilli sauce production, which comprises a supporting seat, a feeding pipe structure and a motor are mounted at the upper end of the supporting seat, and the feeding pipe structure comprises an inner pipe, a blocking end plate, an outer sleeve, a rotating shaft, a feeding spiral blade, a flow guide spiral blade and a turbulent flow protrusion. A discharging opening is formed in the end, away from the motor, of the outer surface of the lower end of the inner pipe, and the hopper is installed at the end, close to the motor, of the outer surface of the upper end of the feeding pipe structure. According to the conveyor for bagged chili sauce production, the outer wall of the chili sauce conveying inner pipe is cooled through cold water, friction heat is counteracted through circulating low-temperature media (such as cold water of 5-15 DEG C), the sauce temperature is maintained, and the chili sauce conveying quality is improved; the medium is forced to uniformly flow along the outer wall of the inner pipe, and the turbulent flow bulges are arranged to destroy the boundary layer of condensed water flow, enhance turbulent flow and improve the cooling effect.

The utility model provides a kind of falling film evaporator suitable for DMF, including shell side and pipe passage;Shell side includes the No. one cylinder body, expansion joint and No. two cylinder body sequentially connected from top to bottom, built-in heat exchange tube;Pipe passage includes the No. three cylinder body below shell side and the upper tube unit located above shell side, upper tube unit includes the No. four cylinder body connected on upper tube plate and the No. five cylinder body and No. six cylinder body connected with each other, the No. five cylinder body and No. six cylinder body are set on the outside of No. four cylinder body, No. four cylinder body is provided with feed inlet by tube distributor assembly, the top of No. six cylinder body is provided with gas phase outlet by upper head.The utility model passes through shell side and pipe passage structure, significantly improves heat exchange efficiency, the turbulence effect of fluid is enhanced by the odd baffle and even baffle built-in shell side, promotes the effective transmission of heat;In pipe passage, liquid distributor ensures that liquid is vertically dropped into heat exchange tube in uniform fine stream, avoids local overheating, improves heat exchange uniformity.

The utility model relates to high carbon martensite steel cryogenic treatment technical field discloses a kind of liquid nitrogen circulating cooling systems for high carbon martensite steel rapid cryogenic treatment, including dewar and circulating pump, the output end of the dewar is fixedly connected with connecting pipe, the input end of circulating pump is fixedly connected in the one end of connecting pipe away from dewar, the output end of circulating pump is fixedly connected with liquid outlet pipe, the inside of liquid outlet pipe is provided with turbulence mechanism and auxiliary mechanism, the turbulence mechanism includes support frame, the inner wall of liquid outlet pipe is fixedly connected in support frame, the inner wall of support frame is penetrated and rotationally connected with rotating rod. In the utility model, by the design of turbulence mechanism, liquid outlet pipe can improve the turbulent effect of liquid nitrogen while conveying liquid nitrogen, and then the laminar boundary layer of liquid nitrogen can be damaged, so that it can quickly transfer cold quantity to the inside of high carbon martensite steel when using, so that the cooling efficiency of high carbon martensite steel can be improved.

This utility model discloses a quaternary pump structure for liquid transportation, including a transportation component. The transportation component includes a connecting pipe, a suction chamber, a degassing membrane, a mounting base, a proportional valve, a mixing chamber, a spiral blade, a high-pressure pump, a delivery pipe, a housing, an elastic metal diaphragm, and a distributor pipe. A suction chamber is provided outside the connecting pipe, and four connecting pipes are evenly installed on the mounting base. A miniature vacuum pump is installed on the top of the suction chamber. A degassing membrane is fixedly connected to the inner wall of the connecting pipe, and a proportional valve is installed on the connecting pipe. This utility model, by setting a degassing membrane inside the connecting pipe and combining it with the suction chamber and the miniature vacuum pump, can effectively remove air bubbles from the liquid, improving the accuracy and stability of liquid transportation. The spiral blade in the mixing chamber enhances the turbulence effect of the liquid flow, promoting thorough mixing of components and improving mixing uniformity. The combined use of the high-pressure pump and the elastic metal diaphragm buffers pressure fluctuations, ensuring stable output liquid pressure.